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Finding the Fourth Proportional to 192.42, 265 and 191.82

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Solution

The fourth proportional to 192.42, 265 and 191.82 is: 264.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    192.42 : 265 = 191.82 : x
  2. Step 2: Convert to fraction form
    192.42/265 = 191.82/x
  3. Step 3: Cross multiply
    192.42x = 265 × 191.82
  4. Step 4: Simplify right side
    192.42x = 50,832.30
  5. Step 5: Solve for x
    x = 50,832.30/192.42
  6. Step 6: Final answer
    x = 264.17

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.